Parker 6-8 F5OLO-S Straight Thread Connector Orfs Sae-orb

Product Description

The PARKER 6-8 F5OLO-S is a compression tube straight thread connector designed for high-pressure hydraulic and fluid power plumbing applications. It connects a 3/8-inch outside diameter compression tube to a straight-thread SAE O-Ring Boss (SAE-ORB) port using an O-Ring Face Seal (ORFS) interface on the tube end. Constructed from steel, this fitting is rated to a maximum working pressure of 9,200 psi. The 3/4-16 UNF thread size is a common standard in hydraulic manifolds and valve bodies. Hydraulic technicians, industrial plumbers, and fluid power specialists install this type of fitting in assemblies requiring leak-free, high-pressure tube-to-port transitions.

This connector is used in hydraulic systems, mobile equipment, industrial machinery, and fluid power circuits where a 3/8-inch OD tube must terminate at an SAE-ORB threaded port. The ORFS end provides a metal-to-metal face seal supplemented by an O-ring, minimizing leak paths under high-cycle or high-vibration conditions. Typical install scenarios include hydraulic manifold assemblies, valve station plumbing, and mobile hydraulic lines in agricultural, construction, and industrial equipment.

Key Features

• ORFS x SAE-ORB end connections for leak-resistant tube-to-port assembly
• Rated to 9,200 psi maximum working pressure
• 3/8-inch tube outside diameter compatibility with 3/4-16 UNF straight thread
• Steel construction for durability in demanding hydraulic environments
• UNF thread standard ensures broad compatibility with standard hydraulic ports

Compatibility

Designed as an OEM-style replacement or service fitting for hydraulic systems using 3/8-inch OD compression tube terminating at a 3/4-16 UNF SAE-ORB port.

Installation Notes

Installation should be performed by a qualified hydraulic technician or industrial plumber familiar with high-pressure fluid power systems. Depressurize and isolate the hydraulic circuit completely before removing or installing any fitting. Inspect the O-ring sealing surface and thread condition prior to assembly; damaged threads or sealing faces can cause failure under pressure. Follow the system manufacturer and applicable fluid power standards for torque procedures and system re-pressurization protocols.